Circe

Circe  is a supervillain that appears in  The Gamma Monster & The Adventurous Amazon  and will appear in  ''Avengers of Justice. ''

Circe is an evil goddess with magical powers who likes turning people into animals, especially men who desire her. She does this for entertainment or for protection.

The Gamma Monster & The Adventurous Amazon
She arrives at Themyscira, where Queen Hippolyta gives her the mission of bringing Wonder Woman back to Themyscira unharmed in an attempt to get her away from Hulk. Unbeknownst to Queen Hippolyta, Circe secretly plans to turn Wonder Woman into an animal.

Circe finds Hulk and Wonder Woman, who had a recent bar fight with some thugs. Circe restrains Hulk with magic before restraining Wonder Woman and turns her into a puppy. Circe later meets up with Hulk and tells him that she will turn Diana back if he steals a few valuable items for her. Realizing that he has no other choice, Hulk agrees to help her, though she puts an obedience curse on him, which forces him to do whatever she tells him to do.

After Hulk retrieves the items, she turns Wonder Woman back to normal, but refuses to lift Hulk's obedience curse and tells Hulk to kill Wonder Woman and Zatanna, who took care of Wonder Woman while she was a puppy. Zatanna restrains her while Wonder Woman frees Hulk from the spell by passionately kissing him, the same way she freed him from Cheetah's love spell. Hulk then knocks Circe out as payback for using him as a slave and for almost killing his friends.

After Wonder Woman and Hulk return to Themyscira with Circe in chains, she is locked up in a power neutralizing prison cell along with Queen Hippolyta by Wonder Woman herself, who is heart broken that her own mother won't let her be happy with Hulk.

Powers
Immortality: As Circe is a goddess, she has the potential to live forever.

Magic: Circe has the magic ability to turn people into animals, which she often does for fun. Her favorite animal forms are wolves, gorillas, bears, and various birds of prey.